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A247899 First differences of A247679 1

%I

%S 90,18,18,54,72,18,18,18,36,18,18,72,54,36,36,18,36,72,18,36,54,54,18,

%T 18,54,18,18,18,36,36,18,36,36,36,54,18,18,18,36,18,18,36,18,54,18,18,

%U 90,18,18,36,18,18,18,18,18,18,18,72,18,18,54,18,18,54,18,36,18,18,36,18,36,18,18,54,54,36,18,18,18,18,18

%N First differences of A247679

%C All terms have digital root equal to 9.

%H Odimar Fabeny, <a href="/A247899/b247899.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A247679.

%K nonn,easy

%O 1,1

%A _Odimar Fabeny_, Sep 26 2014

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Last modified February 8 04:10 EST 2023. Contains 360134 sequences. (Running on oeis4.)